AirHint found the following cheapest return flights from Oslo (OSL) to Seoul (ICN) in December 2025 (see full year).

Return flights

01 Dec - 08 Dec	Norwegian
03 Dec - 13 Dec	Wizz Air
05 Dec - 22 Dec	Lufthansa
05 Dec - 23 Dec	Lufthansa
05 Dec - 20 Dec	Lufthansa
30 Dec - 13 Jan	Ryanair
24 Dec - 30 Dec	Finnair
27 Dec - 30 Dec	LOT
13 Dec - 04 Jan	Norwegian
16 Dec - 08 Jan	Ryanair
30 Dec - 06 Jan	Finnair
18 Dec - 31 Jan	Norwegian
01 Dec - 11 Dec	Air France
16 Dec - 04 Jan	Ryanair
27 Dec - 10 Jan	Finnair
23 Dec - 05 Jan	Finnair
24 Dec - 05 Jan	Finnair
26 Dec - 09 Jan	Wizz Air

Also check the deals for one-way flights from Oslo to Seoul in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Oslo to Seoul in December from 483€

Return flights